# -*- coding: utf-8 -*-#
#-------------------------------------------------------------------------------
# 建立者:        黄周云  
# Name:         test06
# Description:  例23.6
# Author:       ASUS
# Date:         2019/4/4
#-------------------------------------------------------------------------------



from numpy import *
a = arange(12).reshape(3,4)
b = arange(16).reshape(4,4)
c = arange(20).reshape(5,4)
#垂直组合
print(vstack((a,b,c)))

